Step 1: Cut the top and bottom of the onions. Cut the onions into slices with their grains, the same direction as those lines are going in the onions.Step 2: Season the beef slices very well with salt and pepper on both sides.Step 3: Fry them until brown in a pan on high temperature. Depending upon the size of the pan, fry them in batches. Do not force all together and apply some oil in it. Fry them on both sides.Step 4: Change heat to medium. Fry your onions in the same pan with oil and seasoning in which you fried the beef.Step 6: Once the onion is fried to gold, add two cups of beef broth.Step 7: Pour the beef broth and onion into the beef pan. Turn down heat and braise on low for 3-4 hours.Step 8: After 3-4 hours, take the beef bones from the pan and serve them separately. Step 9: Turn the heat to medium high and stay till it becomes thickened.